Tudor Black Bay One 36

The Tudor Black Bay One 36, reference M79640-0001, has a steel case measuring 36mm across and 10.5mm thick. A flat sapphire crystal covers the anthracite dial, with luminous hands and indices for legibility. The screw-down crown bears the Tudor rose in relief. Inside is the self-winding manufacture calibre MT5400, a chronometer with a power reserve of about 70 hours and a central seconds display. The steel bracelet closes with a folding clasp and safety catch, finished to match the case in polished and satin steel. It stays water resistant to a depth of 100 metres.